Chosen Solution
Hi. I have a Mac Pro (late 2013) which I need TG Pro (or Macs Fan Control) to control the fan speed. - Without it is constantly high. I have observed that the sensor for “GPU 2/B Die” is 0/missing in TG Pro and istats menu. I assume that the high fan speed is a precaution by the SMC as it cannot read the temperature. Do you have any idea on how to fix it? - The GPUs seem otherwise unaffected. Best, Thomas
I’ve seen this a few times your main logic boards SMC logic needs repairs. Time to visit an Apple Store for reference: PFM006 & PPN001 error in diagnostics
